Apparatus for cutting and mixing sand



Jun; 14, 1927.

V. E. MINICH APPARATUS FOR CUTTING AND MIXING SAND Filed Feb. 4, 1920 2 Sheets-Sheet l 14 192 June 7 v. E. MINICH APPARATUS FOR CUTTING AND HIKING SAND Filed PM. 4, 1920 2 Sheets-Sheet 2 am-d June 14, 1927;

mm; n m tten .01" NEW 1 K si N am AME M e ame? ne rmm COMM or i- Q BQRAT QN WK Q AgP nAT r sroncnTTrNG Ann rrrxmesmrn.

" Application filed Ilsbruary My invention relatesto apparatiis for cutting and mixing sand, and paratus for-" nixingzthesand used 11 foundrice to ncake'nioids in which metal; ;1s 7 cast."

The invention relates' inore, particularly to that type 'offsandf cutters or mixers, which travel"-aiong" the floor, cutting and mixin the sand er heap and thin "ready for, use'by the*1no1ders,in which type ofapparatus it is ctis'toinarytohayethe devices mounted on cutting and mixing wheels for convenient mdvemem.

one object or the present invention is to provide" "simple, practical and" efli'c'ient ap naratus of the clase specified. h object or *theili'v'ention isto 'se- Mi e cure 'eflectivcness'of operation and {also to secure ready handling and adjtist'inent of side'ele vation or a eand on the apparatus as cn nstances.

Other objects of required Ihydifferent circiitting mixing the sand; .to arrange for the quick and ready, controlof "the apparatue and its varionsfparts, also" for the easy control of the movements ofth'e en tireiniachine of the deylc e ant s'e'cnreth'e foregoing "and other desirable a ple andadvantageous manner.

th a mpanyin "dr w n Fijg! h tting andji11 rng machine embodying my present,

Qis a plan viewL-of the same. Retiring the drawin gefl 'Show a inachine'lha riihg a body frame 1 mo'untqtn back wheels 2+2, and e nt ween e-+3;

'Lheback'wheels 2%2 areinountedfih forlte' 4; supp rt d by; p sts st t h 'u pf lj "end of one of whichi's a steeringhahdle 6. At the diaper end of the otherend of the 'p oistisa small cross arng'r and] a rod 8 1e pref earthly extended between the croee arm 7- and the handle 6 so tl latxsaid rear wheelsfl j may be operated in unison.

The. front wheels 3 -3 are reprinted on f *Yhih a e uppo te 11 ea ings at the lower, end, of eidetineni bers losect red to? and extending downwardl'ylfrointhe lower enrfaceofthe aide members ot'the frame 1 These ifrcoirt-whe'ele 3 -3 are the drive wheels otthe machine-and are dritzen by suitable matter.

"especially to ap-- leaving it in condif the invention are to -p1'o-' vide simple and advantageous dBVICBS "for" 4,1920; se ria l 110456307.

drive the machine and also to "drive the sand cut-ting and'nnxing devices thereof, .a motor ll is shown Inountedon the frame oi the tsuitably eonnected with a sourcejot electrical power or energy so that it may he readiiy driven; T1113 motor 11*15 shown provided with a gear d'vi-vewheel 12'a-nd this! wh'ee1 12' t 1s shown in contact with and arranged to drive "two? other gear wheels '13' and 14,

one on each side of saidWvhel 12. The" wheel. 13 "is mounted ona shaft 15'carryinga mitre wheel 16 which'niesheswith en-' other mitl e wheel 17 on a rotary drive shaft 18. Thie drive shaft 181 extended to oil'e sidegof the machine and itsotrter'end pro-r -vided with-a sprocket Wheel 19 carrying a sprocket chain 20 whichis extendedaround a sprocket wheel '21 on one of the front wheels 3 (Fig. 2). shaft- 18 is provided with lnitre wheel forming part of a gear changing device 23; from which latter therefis extendedanother drive; shaft Qwhih extend-s to the other side otthe machine and 'ca'ri ies a eprocket 25 carrying a chain 26"which' fruns ov'era gear The other end of the a 27 'car'ried by the other from driving wheel 3 "Byvrneansof-"the'gear changing device 23 the ehafts' 18 and'Q L may be so-connected as mean hithefiri the saine or inoplaoeit'e direc ti'on'sl Thtis by niea ns 'of the motor 'l lth'e ctrivewhe'e'ls 33'niay"be driv'eni so as to ad- Vance gorYniovTe theavholeinachine over the floorior'eurface on which it may 'tbe 'alace'd,

and by mea'n's'o'fthe gearbhangin device 23 the shafts 18"andf'2 k'hy' being propelled in the sanie 'cTrifection will cause the-1n ach'ine to travel in a straight line either front er back; lntt hyhei'ng propellediin-cop ioeite directionjei will causetheniachine'tot rrnflto' one-side or,

the other.

The' lnotorllby means otthe other gear drivefwheel 14Apro pe'1s a rotaryisha ft 30 by earls of which th efis andniixingand cutting devices,'areactttated;

These 'saiidlnixi ng and cutting devices comprise two rotary merhbrsSlQ-Eil located near-the trqnt q'f th machin a t-mounted for ertical"ro t'ati'oiil' "*Eachfiotary member preferably consists or an" upper rmine 32 and a lower frame 33 eachfmountedlon'a Vertical-shaft e4,wsaig1:rgamesee arraee being en fi iitlt tee 1 a dial members and vertically arranged members 36. Each rotary member 31 is provided with a helically arranged sand cutting device 87, the lower end of which is attached to the lower frame 33 and the upper end of which is attached to the upper frame 32. Each helical cutting device 87 is adapted to cut and mix the sand when the rotary member carrying it is rotated. Each rotary member is also preferably provided with radially projecting blades 3S38 secured to the upper and lower frames 32 and 33 and preferably formed integral with and extending outwardly from the vertical members 36. These blades 38 also cut and mix the sand when the rotary members carrying them are rotated. Preferably the blades on one rotary member are slightly out of register with the blades on the other rotary member, and are of greater width than half the distance between said rotary members, whereby said blades will slightly overlap as the rotary members are rotated and will thus prevent passage of sand between said rotary members.

As an arrangement for driving said rotary nembers 3131 I show toothed wheels or gears 40 on the top of each member and a cross shaft 41 provided with pinions 4242 adapted to mesh with said gears 40. The shaft 41 is also provided with a beveled gear 43 meshing with a pinion 44 on the driving shaft 30 which has been previously referred to as being driven by the motor 11 through the drive wheel 14, there preferably being a universal joint or clutch 4-5 at the end of the shaft 30 between the same and the shaft carrying the drive wheel let. Thus the rotation of the motor 11 will cause the rotation of the rotary members 31-31 and the rotation of these latter will cause the cutting and mixing devices thereon to cut and mix the sand.

The rotary shafts 3st 011 which the mixing cylinders 31 are mounted are preferably of substantially greater length than the length of the mixing cylinders 31 and extend upwardly above the upper ends of said cylinders or members 31. This permits said shafts 31 to be mounted in bearings 46 and 47 both above the members 31, the bearing 47 being substantially elevated above the bearing 4-6. Both of said bearings 46 and 47 are preferably carried by a frame having cross members 4848 and end members 49-49 which extend upwardly and provide the elevated bearings 4:7, and downwardly extending members 5050 which provide the lower bearings 46. This frame also has intermediate transversely extending members til-51 which provide bearings for the cross shaft 41. This entire frame with its members 48, 49 and associated parts, is vertically adjustable and the gearing and driving mechanism which it carries, as well as the mixlng members or cylinders 31, are

bodily adjustable with said frame, whereby there is permitted a certain amount of vertical adjustment on the part of the mixing and cutting members 31 so as to allow their adjustment as desired. This adjustable frame is secured by elevated braces or sup porting members 52 and lower braces or supporting members 53, and these latter converge and meet and are secured together at their forward ends by angle pieces 54. These angle pieces 5% are pivotally connected with the frame of the machine by means of pivots 55 supported in brackets 5656 on the body frame of the machine. By this mounting for the adjustable cutting and mixing mechanism carrying frame, taken in connection with the flexible or universal joint for the shaft 30, the entire mixing and cutting mechanism may be bodily raised or lowered as desired.

Any suitable means may be provided for disconnecting the cutters from the motor, when it is desired to move the machine under its own power from place to place.

As one means for effecting this vertical adjustment, I show flexible connectors 57 mounted 011 reels or drums 58, which latter are carried by a rotatable shaft 59 extended crosswise of the frame of the machine and supported in elevated bearings 60 mounted on standards 61 at the opposite sides of the machine. The flexible connectors 57 are connected with the rear frame pieces -l-8 and a worm and wheel drive (32(l23 is provided controlled by a shaft (33 having a hand wheel Get so that by turning the hand wheel (5-1, a vertical adjustment either up or down may be secured.

The machine is also preferably provided with sand deflecting members (55(;5 secured to the sides of the machine frame and having inwardly inclined members 66 extending inwardly at an inclination from the oppo site sides of the machine. These inclined members ()(5 deflect the sand after it has been cut and mixed by the cutting and mixing devices and heat it in position between the sides of the machine. The rear ends (37 of the members (55 extend back to the sides of the machine frame so as to form supports or braces for the members 66.

It will be understood that changes and modifications may be made without departing from the spirit of the invention.

lVhat I claim is:

1. The combination of a vertically adjust able frame provided with two sets of bearings, one bearing in each set being above the other, rotary shafts mounted in said bearings, and rotary members carried by said shafts and located below the lower bearings, said rotary members being provided with sand mixing and cutting devices, said mixing and cutting devices comprising helical cutters and straight cutting blades arjun llf)

ranged outside of said helical cutters lengthwise of the axis thereof.

2. The combination of a pair of independently rotatable members, each rotating about an independent vertical axis and each providedxwith vertical helical cutting blades and other cutting blades arranged side by side close to one another and intermeshing in operation. a

8. The combination of a pair of rotary members, each rotating about a vertical axis and each provided with helical cutting devices, said rotary' members being arranged side by side close toone another, and also being provided with vertically arranged radial cutting devices located at the, pe riphery of said helical cutters and extending lengthwise of the rotary axes thereof.

4;. The combination of a pair of rotary \rnembers, each rotating about an independent "vertical axis and each provided with helical cutting blades, said rotarymenibers'being arranged with their axes parallel, and means for rotating said rotary members in unison, and other cutting blades-arranged to intermesh when rotating.

- 5. The combination with a body frame and sand mixing andcutting devices between the sides thereof, of sand heaping devices comprising members securedto the sides of the machine frame and extending inwardly and rearwardly in the rear of said mixing and cutting devices; v

I 6. In combination, a chassis, a power plant thereon a vertically adjustable frame at the front or the chassis, said frame carrying rotary sand cutting members having vertical axes ofrotation and adapted to act sidewise on a pile of'material on the 'floor or surface on which the machinerests and travels, and said frame being adjustable vertically above said floor so as to permit saidcutting devices to act upon the material piled on the floor, means whereby said frame can be adjusted to secure such adjustment of said cutting devices, a, driving connection between the power plant andcutting devices adapted to permit the aforesaid adjustment of the latter, and means in the re ar of said cutting devices for directing the sand acted on by the cutting'devices inwardly toward the center of the machine.

a '7. In a machine of the class described, a.

wheels, a prime mover on said chassis, a vertically adjustable frame on said chassis comprising substantially triangular side frames,

and a web connecting said frames, vertically alined "bearings in said side frames, horizontally alined hearings in said web, vertical and horizontal shafts arranged for rota- ,tion in said vertical and'horizontal' bearings, respectively, gearing interconnecting by the vertical shafts, a driving shaft connected to said prime mover, said triangular frames being hinged on said chassis, and a universal joint .in said driving shaft.

9. In a machine of the class described in combination, a chassis, driving wheels supporting said chassis atits forward end, a

power plant mounted on the reariend of said chassis, a rigid vertically bodily movable frame hinged at the rear end of said chassis and extending toward the forward end thereof, said chassis completely encompassing the frame, a pair of vertical helical cutting devices rotatable in said frame on independent said shafts, helical cutting devices carried parallel shafts, a counter shaft connecting said parallel shafts above the cutting devices,

and ajointed shaft having bearings in said frameand CllELSSlSfiilcl connected'between said power plant andsaid counter shaft.

'In witness whereof I hereunto subscribe my name this 10th dayof January, A. D., 1920. l s

' vEnNE E. MINICH. 

